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公开(公告)号：US20170272044A1
公开(公告)日：2017-09-21
申请号：US15270687
申请日：2016-09-20
Inventor： John L. MELANSON , Eric J. KING , Zhaohui HE , Siddharth MARU
CPC classification number: H03F3/2173 , H03F3/187 , H03F2200/165 , H03F2200/432 , H04R3/02 , H04R2420/03
Abstract: A signal processing system for producing a load voltage at a load output of the signal processing system, wherein the load output comprises a first load terminal having a first load voltage and a second load terminal having a second load voltage such that the load voltage comprises a difference between the first load voltage and the second load voltage, and may include a first processing path configured to process a first signal derived from an input signal to generate the first load voltage at a first processing path output, a second processing path configured to process a second signal received at a second processing path input and derived from the input signal, wherein the second signal comprises information of the input signal absent from the first signal, to generate the second load voltage at a second processing path output, and a high-pass filter coupled between the first processing path output and the second processing path input.
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32.发明申请公开(公告)号：US20250062674A1
公开(公告)日：2025-02-20
申请号：US18450552
申请日：2023-08-16
Inventor： Shashank ALEVOOR , Siddharth MARU , Pietro GALLINA , Chanchal GUPTA , Vivek PARASURAM
Abstract: A method may include, when in a low-power mode of a power converter, monitoring an output voltage of the power converter; comparing, with a single comparator, the output voltage to a first threshold voltage and cause the power converter to enter a magnetization phase of the low-power mode responsive to the output voltage falling below the first threshold voltage; and during the magnetization phase and a demagnetization phase of the low-power mode, comparing, with the single comparator, the output voltage to a second threshold voltage lower than the first threshold voltage and cause the power converter to enter the high-power mode responsive to the output voltage falling below the second threshold voltage.
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公开(公告)号：US20240333127A1
公开(公告)日：2024-10-03
申请号：US18697813
申请日：2023-03-10
Inventor： Siddharth MARU , Bryan MCCOY , Chanchal GUPTA , Rosario PAGANO
CPC classification number: H02M1/0032 , H02M3/1566 , H02M3/158
Abstract: The controller for a system including a power converter may be configured to cause the system to operate in one of a low-power mode and the high-power mode based on power demand from a load at the output of the power converter and when in the low-power mode, monitor the output of the power converter to detect an occurrence of a load transient from the load and in response to detecting the occurrence of the load transient, transition from the low-power mode to the high-power mode via a transition mode to minimize undershoot and overshoot of the output voltage.
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34.发明公开公开(公告)号：US20230147894A1
公开(公告)日：2023-05-11
申请号：US17690327
申请日：2022-03-09
Inventor： Ryan A. HELLMAN , Viral PARIKH , Siddharth MARU , Tejasvi DAS
CPC classification number: G01R35/005 , G01R27/02
Abstract: Circuitry comprising: a voltage monitoring path; a current monitoring path; a reference element of a predefined impedance; and processing circuitry, wherein in operation of the circuitry in a calibration mode of operation: the voltage monitoring path is operative to output a signal indicative of a voltage across the reference element in response to a reference signal applied to the reference element; the current monitoring path is operative to output a signal indicative of a current through the reference element in response to the reference signal; and the processing circuitry is operative to: receive the signal indicative of the voltage across the reference element and the signal indicative of the current through the reference element; generate an estimate of an impedance of the reference element; and determine a compensation parameter for an element of the circuitry for compensating for a difference between the estimate of the impedance and the predefined impedance of the reference element.
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公开(公告)号：US20230144960A1
公开(公告)日：2023-05-11
申请号：US17846832
申请日：2022-06-22
Inventor： Anand ILANGO , Siddharth MARU , Tejasvi DAS , John L. MELANSON
Abstract: A system may include amplifier circuitry configured to drive an electromagnetic load with a driving signal and a processing system communicatively coupled to the electromagnetic load and configured to compensate for current-sensing error of the processing system caused by feedback circuitry of the amplifier circuitry.
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Patent Agency Ranking
公开(公告)号：US20220359113A1
公开(公告)日：2022-11-10
申请号：US17568248
申请日：2022-01-04
Inventor： Emmanuel A. MARCHAIS , Tejasvi DAS , Siddharth MARU
IPC: H01F7/18
Abstract: A system may include an electromagnetic actuator, a first coil configured to drive mechanical displacement of the electromagnetic actuator, a second coil configured to drive mechanical displacement of the electromagnetic actuator, and an inductance sensing subsystem having an inductance sensing path coupled to the first coil and the second coil. The inductance sensing subsystem may be configured to select one of the first coil and the second coil for driving mechanical displacement of the electromagnetic actuator, select the other of the first coil and the second coil as a sensing coil for sensing displacement of the electromagnetic actuator, determine a displacement of the electromagnetic actuator based on a measurement of estimated inductance of the sensing coil, and when switching selection of the sensing coil from the first coil to the second coil determine the displacement of the first coil based on a measured inductance of the first coil at approximately the time of switching selection, estimate state variables of the inductance sensing path to be used with the second coil based on the displacement, and apply the state variables to the inductance sensing path after switching selection of the sensing coil from the first coil to the second coil.
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公开(公告)号：US20220307872A1
公开(公告)日：2022-09-29
申请号：US17211073
申请日：2021-03-24
Inventor： Siddharth MARU , Josh SANZ-ROBINSON , Tejasvi DAS , John L. MELANSON
Abstract: A system may include a plurality of sensors configured to sense a physical quantity and a calibration subsystem configured to perform a calibration comprising: comparing a measured characteristic from each of at least two sensors of the plurality of sensors to determine a sensitivity drift of at least one sensor of the plurality of sensors; based on the measured characteristics of the at least two sensors and stored reference characteristics for the at least two sensors, calculating a normalization factor; and applying the normalization factor to the measured characteristic of the at least one sensor to ensure sensitivity of the plurality of sensors relative to each other remains approximately constant.
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公开(公告)号：US20220252428A1
公开(公告)日：2022-08-11
申请号：US17170174
申请日：2021-02-08
Inventor： Luke LAPOINTE , Siddharth MARU , Tejasvi DAS
Abstract: A system may include a plurality of sensors, a measurement circuit communicatively coupled to the plurality of sensors and configured to measure one or more physical quantities associated with the plurality of sensors, and a predictive optimization subsystem configured to detect an event associated with a first sensor of the plurality of sensors and responsive to the event, execute a predictive action with respect to one or more of the other sensors of the plurality of sensors.
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公开(公告)号：US20220029617A1
公开(公告)日：2022-01-27
申请号：US17494479
申请日：2021-10-05
Inventor： Matthew BEARDSWORTH , Tejasvi DAS , Siddharth MARU , Luke LAPOINTE
IPC: H03K17/14 , H03K17/975 , H03K17/97
Abstract: A system may include a sensor configured to output a sensor signal indicative of a distance between the sensor and a mechanical member associated with the sensor, a measurement circuit communicatively coupled to the sensor and configured to determine a physical force interaction with the mechanical member based on the sensor signal, and a compensator configured to monitor the sensor signal and to apply a compensation factor to the sensor signal to compensate for changes to properties of the sensor based on at least one of changes in a distance between the sensor and the mechanical member and changes in a temperature associated with the sensor.
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公开(公告)号：US20210404901A1
公开(公告)日：2021-12-30
申请号：US17079709
申请日：2020-10-26
Inventor： Michael A. KOST , Tejasvi DAS , Marc J. KOBAYASHI , Siddharth MARU , Rahul GAWDE
Abstract: A method for determining sensor parameters of an actively-driven sensor system may include performing an initialization operation to establish a baseline estimate of the sensor parameters, obtaining as few as three samples of a measured physical quantity versus frequency for the actively-driven sensor system, performing a refinement operation to provide a refined version of the sensor parameters based on the as few as three samples, iteratively repeating the refinement operation until the difference between successive refined versions of the sensor parameters is below a defined threshold, and outputting the refined sensor parameters as updated sensor parameters for the actively-driven sensor system.
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